<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>活动图</title>
		<style>
			*{
				width: ;
				height: ;
			}
			/* 鼠标移动上去改变效果：下阴影 */
			section div
		</style>
	</head>
	<body>
		<!-- section元素：页面区域划分、文章分节、章节划分 -->
		<section>
			<div id="event">
				<ul>
					<li><img src="img/left.png" alt="1" /></li>
					<li><img src="img/subnav_icon01.png" alt="2" /></li>
					<li><img src="img/subnav_icon02.jpg" alt="3" /></li>
					<li><img src="img/subnav_icon03.png" alt="4" /></li>
				</ul>
			</div>
		</section>
	</body>
</html>